Double Six dominoes is a game played by tow or more players. Each half of a domino tile is called an end. An end with no dots is called a blank and a tile with the same number of dots on both ends is called a doublet. The highest ranking tile in the Double Six dominoes is the Six Doublet or better known as "Double Six ". A set of Double Six consists of 28 tiles. It also includes a center piece, instructions and a tin box to store the dominoes in.